Fujitsu MAN3735MC Manual/User Guide - Page 60
Power Supply Requirements, Current waveform +12 VDC
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Current (500 mA/div) Current (500 mA/div) Current (500 mA/div) 4.2 Power Supply Requirements (1) Allowable input voltage and current The power supply input voltage measured at the power supply connector pin of the IDD (receiving end) must satisfy the requirement given in Subsection 2.1.3. (For other requirements, see Items (4) and (5) below.) (2) Current waveform (reference) Figure 4.8 shows the waveform of +12 VDC. MAN3735 series MAN3367 series MAN3184 series Time (2 sec/div) Time (2 sec/div) Time (2 sec/div) Figure 4.8 Current waveform (+12 VDC) (3) Power on/off sequence a) The order of the power on/off sequence of +5 VDC and +12 VDC, supplied to the IDD, does not matter. b) In a system which uses the terminating resistor power supply signal (TERMPWR) on the SCSI bus, the requirements for +5 VDC given in Figure 4.9 must be satisfied between the IDD and at least one of the SCSI devices supplying power to that signal. 4 - 8 C141-E128-01EN
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